Managing an application variable using variable attributes

ABSTRACT

A system is configured to receive a notification that variable information, associated with a variable, is stored in a logical workspace; obtain, in response to the notification, the logical workspace; and generate meta information associated with the variable, where the meta information includes information associated with a temporal attribute of the variable, information associated with an application that generated the variable information, information associated with a contextual attribute of the variable, or information associated with a spatial attribute of the variable. The system is also configured to associate, the meta information with the variable information, where associating the meta information with the variable information permits an operation to be performed on the meta information or on the variable information based on the meta information.

BACKGROUND

Software applications may perform operations and/or tasks when executinglogic and/or code associated with the applications. When performing theoperations and/or tasks, the applications may generate informationassociated with variables that are used by the applications. Theinformation associated with the variables, may include one or morevalues (e.g., numerical values, strings, alphanumeric values, etc.),names of the variables (e.g., velocity (v), position (x), time (t),etc.), and/or types of the variables (e.g., double precision, integer,floating point, etc.).

Unfortunately, managing information, associated with a variable, isoften difficult when the information is generated one or more times byan application, by different applications, by different versions of thesame application, by different versions of different applications, etc.Additionally, determining when the information, associated with thevariable, was generated may not readily be determined from theinformation associated with the variable.

BRIEF DESCRIPTION OF THE DRAWINGS

The accompanying drawings, which are incorporated in and constitute apart of this specification, illustrate one or more implementationsdescribed herein and, together with the description, explain theseimplementations. In the drawings:

FIG. 1A is a diagram of an example environment in which systems and/ormethods described herein may be implemented;

FIG. 1B is a diagram of an example application UI according to animplementation described herein;

FIG. 1C is a diagram of a logical workspace UI according to animplementation described herein;

FIG. 2 is a diagram illustrating example components of a device of FIG.1;

FIG. 3 is a diagram illustrating an example variable set up userinterface according to an implementation described herein;

FIG. 4 is a flow chart of an example process for setting up informationassociated with one or more attributes of a variable;

FIG. 5 is a diagram illustrating an example logical workspace userinterface according to an implementation described herein; and

FIG. 6 is a flow chart of an example process for managing informationassociated with a variable using information associated with one or moreattributes of the variable according to an implementation describedherein.

DETAILED DESCRIPTION

The following detailed description refers to the accompanying drawings.The same reference numbers in different drawings may identify the sameor similar elements. Also, the following detailed description does notlimit the implementations, described herein.

Systems and/or methods, described herein, may enable informationassociated with a variable (hereinafter referred to as “variableinformation”) to be managed and/or processed based on informationassociated with one or more attributes of the variable (hereinafterreferred to as “meta information”). The meta information may, forexample, include:

-   -   information associated with a temporal attribute of the        variable, such as a version of variable, a time associated with        the variable (e.g., a time stamp, etc.), an interval in time        during which the information associated with the variable was        generated by an application, etc.;    -   information associated with a historical attribute of the        variable (e.g., one or more versions of the variable over a        period of time, a change log of the variable over the period of        time, etc.);    -   information associated with a spatial attribute of the variable        (e.g., one or more application elements having read access to        the variable, having write access to the variable, and/or are        displayed, on a display device, with respect to the variable);    -   information associated with an application (e.g., an application        name, a version of the application, a change log of the        application, a logical element associated with the application,        etc.) from which the information, associated with the variable,        was generated;    -   information associated with a temporal attribute of an        application (e.g., a version of the application, time that the        application was created, time that the application was checked        into a version control system, etc.);    -   information associated with a contextual attribute of the        variable (e.g., a unique identifier that corresponds to the        variable, etc.);    -   information associated with a logical workspace (e.g., a logical        workspace name, a version of the logical workspace, etc.) into        which the information, associated with the variable, is stored;        and/or    -   information associated with a visual attribute that is visible        with respect to the application and/or the variable (e.g., an        image, icon, and/or visual aesthetic associated with the        application, etc.).        An application may be any type of computer program that, when        executed, performs an act and/or operation, and/or generates        variable information. For example, a computer program may        implement a model of a dynamic system (e.g., a physical system,        a software system, etc.) and may simulate the system when the        program code is executed.

The application may be, for example, a technical application such as amodel (e.g., an application that models and/or simulates a dynamicsystem, a physical phenomenon, a mathematical equation, etc.), abusiness application (e.g., an application that performs workflows,accounting, financial analysis, etc.), an operating system, etc.

In another example, the application may be a graphical model that canfunction within a technical computing environment (TCE). For example,the application may be an executable graphical model that performs anact and/or operation within the TCE when the model is executed. Theexecutable graphical model may generate variable information that may bestored in a logical workspace and/or presented for display via a userinterface associated with the logical workspace.

The TCE may include hardware and/or software based logic that provides acomputing environment that allows operators to perform tasks related todisciplines, such as, but not limited to, mathematics, science,engineering, medicine, business, etc., more efficiently than if thetasks were performed in another type of computing environment, such asan environment that required the operator to develop code in aconventional programming language, such as C++, C, Fortran, Pascal, etc.The TCE may connect a model with code that is executing externally(e.g., on a target processor) to enable a processor-in-the-loopconfiguration, hardware-in-the-loop configuration, software-in-the-loopconfiguration, or model-in-the-loop configuration. The executable codemay generate variable information that may be stored in a logicalworkspace and/or presented for display via a user interface associatedwith the logical workspace.

The TCE may automatically generate code from at least part of a model.The code may be software code (e.g., C+, C++, SystemC, etc.), hardwarecode (e.g., hardware description language (HDL), etc.), or somecombination thereof.

In one example implementation, the TCE may include a dynamically typedlanguage that can be used to express problems and/or solutions inmathematical notations familiar to those of skill in the relevant arts.For example, the TCE may use an array as a basic element, where thearray may not require dimensioning and/or indexing. These arrays may beused to support array programming in that operations can apply to anentire set of values, such as values in an array. Array programming mayallow array based operations to be treated as a high-level programmingtechnique or model that lets a programmer think and operate on entireaggregations of data without having to resort to explicit loops ofindividual non-array, i.e., scalar operations.

A TCE may further be adapted to perform matrix and/or vectorformulations that can be used for data analysis, data visualization,application development, simulation, modeling, algorithm development,etc. These matrix and/or vector formulations may be used in many areas,such as statistics, finance, image processing, signal processing,control design, life sciences, education, discrete event analysis and/ordesign, state based analysis and/or design, etc.

A TCE may further provide mathematical functions and/or graphical tools(e.g., for creating plots, surfaces, images, volumetric representations,etc.). In one implementation, the TCE may provide these functions and/ortools using toolboxes (e.g., toolboxes for signal processing, imageprocessing, data plotting, parallel processing, optimization, etc.). Inanother implementation, the TCE may provide these functions as blocksets (e.g., an optimization block set). In still another implementation,the TCE may provide these functions in another way, such as via alibrary, etc. The TCE may be implemented as a text based environment, agraphically based environment, or another type of environment, such as ahybrid environment that is both text and graphically based.

A meta function may identify and/or generate meta information associatedwith a variable. Meta information may be identified and/or generated, bythe meta function, each time the application processes and/or generatesvariable information. The meta function may be integrated with theapplication (e.g., as an application subroutine), with anotherapplication, or may be a stand-alone function. For example, astand-alone meta function may be separate from the application and maybe called by the application, and/or may call the application.

The meta function may generate, and/or cause the application togenerate, meta information. The meta information may enable a device, onwhich the application is hosted, to manage the variable information. Anoperator may provide, to the device, an instruction that specifies howthe device uses the meta information. The meta information may, forexample, enable the operator to distinguish between variable informationthat was generated by an application and other variable information thatwas generated at another point in time, by another application, byanother version of the application, etc. In another example, the metainformation may enable an application to access a logical workspace toobtain particular variable information. The application may use the metainformation to distinguish between the particular variable informationand other variable information that is stored in the logical workspace.

The terms mask dialog, mask dialog entity, or simply mask may refer to agraphical user interface (UI) (e.g., a dialog box, a combo box, etc.)for a portion of a model (e.g., a subsystem) that may be created and/orcustomized to hide portions of the contents of the model/subsystem. Forexample, when a subsystem is masked, the subsystem may appear on adisplay with its own icon and/or a dialog box for showing and/or editingparameters that are related to the subsystem.

A masked subsystem may be associated with a logical workspace that islocal to the subsystem. Parameters and variables may be part of themodel, optionally stored in the local workspace. The subsystem maypermit an operator to provide layers of graphical models within agraphical model to facilitate containment, separation, and/or nestingfor a part of the graphical model. The operator may descend into thesubsystem view from the top level to view the details of this subsystemmodel. The masked subsystem may provide encapsulation to control theoperation and interaction of the logical elements contained in a blockdiagram associated with the masked subsystem. The masked subsystem mayenable the operator to create a self-contained functional unit that hasapplication-specific parameters. The application-specific parameters aremapped to generic parameters of the underlying elements in the maskedsubsystem. The parameters and variables may also be available in alogical workspace that may be global to the model, a number of models,or to the graphical modeling environment.

Example Environment

FIG. 1A is a diagram of an example environment 100 in which systemsand/or methods described herein may be implemented. As illustrated inFIG. 1A, environment 100 may include a computing device 110 connected toa database 115 and a display device 120. In one example implementation,environment 100 may be a TCE that includes an application (e.g., hostedon computing device 110) that allows for models to be created, edited,and/or executed.

The number of devices, illustrated in FIG. 1A, is provided forexplanatory purposes only. In practice, there may be additional devices,fewer devices, different devices, or differently arranged devices thanillustrated in FIG. 1A. Additionally, or alternatively, a device,depicted in FIG. 1A, may perform a function described as being performedby another device of FIG. 1A. For example, computing device 110,database 115, and/or display device 120 could be integrated into asingle device, such as a laptop computer, etc. that performs all or someof the functions described below as being performed by an individual oneof these devices. Alternatively, computing device 110, database 115,and/or display device 120 may be implemented as multiple, possiblydistributed, devices. For example, computing device 110 can be a serverand display device 120 can be connected to a client device that makesuse of applications and processing capabilities provided by the server.The devices of environment 100 may connect via wired connections,wireless connections, or a combination of wired and wirelessconnections.

Computing device 110 may include one or more devices (e.g., a personalcomputer, a laptop, a tablet computer, a server device, a wirelessdevice, such as a mobile phone, a smart phone, or a personal digitalassistant (PDA), or the like), or other types of computation orcommunication devices, that gather, process, search, store, and/orprovide information in a manner similar to that described herein. In oneexample implementation, computing device 110 may include or beassociated with a meta function, which computing device 110 may use toidentify, process, and/or generate meta information associated with avariable.

Computing device 110 may perform a set up operation that enables anoperator to specify a manner in which meta information is generated. Forexample, the meta function may cause computing device 110 to present aset up user interface (UI), for display on display device 120, via whichset up information may be received from the operator. The set upinformation may identify the variable, for which the variableinformation is to be generated by an application. The set up informationmay also specify a manner in which the meta function generates the metainformation. Computing device 110 may receive the set up information andmay store the set up information in database 115.

Computing device 110 may execute the application to generate thevariable information. The meta function may process and/or generate thevariable information based on the set up information retrieved fromdatabase 115.

Database 115 may include one or more devices that store informationand/or data. Database 115 may interface with computing device 110 andmay store set up information associated with a variable. Database 115may store information associated with a UI used by the application whengenerating and/or processing the variable information. Database 115 mayalso store information associated with a UI used by the meta functionwhen generating and/or processing the meta information. Database 115 mayfurther store the variable information and/or the meta information.

Display device 120 may include one or more devices that receive,process, and/or display information received from computing device 110.In one example, computing device 110 may render information on displaydevice 120 via a UI associated with an application. In another example,computing device 110 may render, on display device 120, the variableinformation and/or the meta information, via a UI associated with alogical workspace. In yet another example, computing device 110 mayrender the variable information via a graphical UI.

Example User Interfaces

FIG. 1B is a diagram of an example application UI 130 that may bedisplayed on display 120. Application UI 130 may include an applicationname field 131, a menu bar field 132, a tool bar field 133, UI controlbuttons 134, and/or an application field 136. Application UI 130 isshown, in FIG. 1B, as including fields and/or buttons 131-136 forexplanatory purposes. In practice, application UI 130 may includeadditional fields and/or buttons, fewer fields and/or buttons, differentfields and/or buttons, and/or differently arranged fields and/or buttonsthan are described with respect to application UI 130 of FIG. 1B.

Application name field 131 may identify a name associated with anapplication on which application UI 130 is based. In one implementation,the name may include a sequence of characters that uniquely identifiesthe application. Menu bar field 132 may include a file menu, an editmenu, a view menu, a simulation menu, a format menu, a tools menu, ahelp menu, and/or other menus that, when selected by an operator ofcomputing device 110, permit the operator to perform various functionsin relation to the application. Tool bar field 133 may include toolsthat permit the operator to open an application, store an application,execute an application, pause an application, compile an application,share an application, navigate an application, edit an application,and/or perform operations on an application (e.g., linearization,parameter estimation, operating point computations, etc.). For example,an operator may use tool bar 133 to cause the application to execute.Causing the application to execute may enable the application togenerate variable information and/or associate the variable informationwith a logical workspace. UI control buttons 134 may permit the operatorto, for example, close application UI 130, and control the size and/orshape of application UI 130.

Application field 136 may provide a computing environment that mayallow, for example, an application to perform tasks related todisciplines, such as, but not limited to, mathematics, science,engineering, medicine, business, biology, and finance. Application field136 may include a dynamically-typed programming language (e.g., theMATLAB® language) that can be used to express problems and/or solutionsin mathematical notations.

Application field 136 may be configured in a manner that enables theapplication to perform matrix and/or vector formulations that may beused for data analysis, data visualization, application development,simulation, modeling, and/or algorithm development. These matrix and/orvector formulations may be used in many areas, such as statistics, imageprocessing, signal processing, control design, life sciences modeling,discrete event analysis and/or design, and state-based analysis and/ordesign.

Application field 136 may further provide mathematical functions and/orgraphical tools that may be used for creating plots, surfaces, images,volumetric representations, or other representations. Application field136 may provide these functions and/or tools using toolboxes (e.g.,toolboxes for signal processing, image processing, data plotting, and/orparallel processing). In addition, application field 136 may providethese functions as block sets. Application field 136 may also providethese functions in other ways, such as via a library, local or remotedatabase, and so on.

Application field 136 may be, for example, a time-based graphical blockdiagram model, a state transition diagram, a discrete event model, anactivity diagram, a unified modeling language (UML) diagram, a sequencediagram, a data flow model, or some other type of model or diagram.Application field 136 may be configured to represent a system, such as aphysical system. Application field 136 may be graphical, textual, orsome combination of graphical and textual. The system represented byapplication field 136 may be dynamic, linear, non-linear, or some othertype of system.

A dynamic system (either natural or man-made) may be a system whoseresponse at any given time may be a function of its input stimuli, itscurrent state, and a current time. Such systems may range from simple tohighly complex systems. Natural dynamic systems may include, forexample, a falling body, the rotation of the earth, bio-mechanicalsystems (muscles, joints, etc.), bio-chemical systems (gene expression,protein pathways), weather, and climate pattern systems. Examples ofman-made or engineered dynamic systems may include, for example, abouncing ball, a spring with a mass tied on an end, automobiles,airplanes, control systems in major appliances, communication networks,audio signal processing systems, and a stock market.

Application field 136 may include logical elements, associated with theapplication, that enable the operator to set up, edit, and/or create theapplication. Application field 136 may act as a modeling canvas. Thelogical elements represented via application field 136 may have variousexecution semantics that may be represented as a collection of modelingelements, often referred to as blocks. A block may generally refer to aportion of functionality that may be used in the application. The blockmay be graphically represented. However, it can be appreciated that theblock does not necessarily need to be represented graphically. Forexample, the block may be represented textually or stored in some formof internal representation. Also, a particular visual depiction used torepresent the block, for example in a graphical block diagram, may be anarbitrary design choice.

A block may be hierarchical in that the block itself may comprise one ormore blocks that make up the block. A block comprising one or moreblocks (sub-blocks) may be referred to as a subsystem block. A subsystemblock may be configured to represent a subsystem of the overall systemrepresented by the model.

For example, a masked subsystem can provide a hierarchical scopingmechanism such that the subsystem that is masked defines the top of ahierarchy. Variables within the scoping area can be global such thateach function within the scoping area can access the same variables ifthe variables are accessible at the scoped level. One of ordinary skillin the art will appreciate that the present implementation is not onlyapplicable to variables, but also other application elements such asparameters, and the present implementation may also apply todependencies across multiple applications and not just dependencieswithin a single application.

The parameters and variables may be part of the application, optionallystored in local workspaces, such as, for example, that of a maskedsubsystem. A subsystem allows an operator to provide layers of graphicalmodels within a graphical model to facilitate containment, separationand/or nesting for a part of the graphical model. An operator maydescend into the subsystem view from the top level to view the detailsof this subsystem model.

A masked subsystem provides encapsulation to control the operation andinteraction of the blocks (e.g., logical elements and/or logical blocks)contained in application field 136. A masked subsystem allows anoperator to create a self-contained functional unit that may haveapplication-specific parameters. The application-specific parameters maybe mapped to generic parameters of the underlying elements in the maskedsubsystem. The parameters and variables may also be available in aworkspace that can be global to the model, a number of models, or to thegraphical modeling environment.

Application field 136 may include one or more of logical block elements140-1, . . . , 140-M (where M≧1), initial condition elements 142, readvariable elements 144, write variable elements 146, and logical sourceelements 148-1, . . . 148-N (where N≧1) (hereinafter collectivelyreferred to as source elements 148, and, in some instances, individuallyas source element 148), that are logically connected by one or morelogical connectors 150. Application UI 130 will be described below withrespect to an application that models and/or simulates a dynamic system,such as the behavior of a bouncing ball. Systems and methods, describedherein, are not limited to applications that model and/or simulatedynamic systems, but are, instead, applicable to any type of environmentwhere managing application variables is desired.

Logical block element 140 may correspond to logic, associated with theapplication, that performs an act and/or operation (e.g., associatedwith the bouncing ball). Each logical block element 140 may performdifferent act and/or operation. Initial condition element 142 maycorrespond to information associated with initial values that correspondto the act and/or operation. For example, initial condition element 142may (e.g., in the case of the bouncing ball) correspond to an initialvelocity (e.g., v=1 meter/second), an initial height and/or position ofthe ball (e.g., h=0.6 meters), and/or an initial time (e.g., t=0seconds).

Write variable element 144 may correspond to information associated withan input variable, via which logical block element 140 receivesinformation and/or data (e.g., via logical connector 150). Writevariable element 144 may enable logical block element 140 to execute theact and/or operation (e.g., associated with the bouncing ball) based onthe information associated with the input variable. The informationassociated with the input variable may be a single value or an array ofvalues that, in the case of the bouncing ball, correspond to one or morevelocities (e.g., shown as “[v]”), one or more accelerations (e.g.,shown as “[a]”), one or more discrete states (e.g., shown as “[s_(O)]”)to be used to execute the act and/or operation.

Generated variable element 146 may correspond to variable informationthat is generated and/or processed by logical block element 140 as aresult of executing the act and/or operation (e.g., associated with thebouncing ball). The variable information may be a single value, an arrayof values, a multi-dimensional array of values, a structured data typeof values, an array of values of a structured data type, etc. The arraymay be homogeneous such that all elements are of the same or a similardata type or the array may be heterogeneous in a manner that includeselements of varying data types. In the case of the bouncing ball, thevariable information may be an array of values that correspond to one ormore computed velocities (e.g., shown as “[v]”), computed accelerations(e.g., shown as “[a]”), computed positions (e.g., shown as “[x]”), times(e.g., shown as “[t]”), ball/floor contact indicators (e.g., shown as“[s_(I)]”), etc. associated with the executed acts and/or operations.

Source element 148 may enable variable information to be associated witha logical workspace and/or a UI associated with the logical workspace.Each source element 148 may correspond to respective variableinformation (e.g., [v], [t], [x], etc.), and/or variable informationassociated with multiple variables (e.g., [t] and [v], etc.). Sourceelement 148 may, in one example, be a write block to store variableinformation and/or meta information in a memory and/or logicalworkspace. Source element 148 may be, in another example, a data storememory block to store variable information during execution of theapplication. Source element 148 may be, in yet another example, anoutport block that establishes a link between the application and adestination via which variable information and/or meta information mayflow. The destination may be specified as a local workspace, a globalworkspace, a UI associated with a workspace, another application, etc.Source element 148 may be, in yet another example, a log block thatenables log information associated with an executing model to be storedin the logical workspace or presented for display via the UI associatedwith the logical workspace. Source element 148 may be, in yet anotherexample, a scope block that enables information associated with anexecuting model to be stored in the logical workspace or presented fordisplay via a UI associated with the scope block. Source element 148 maycause a meta function, hosted by computing device 110, to generate metainformation associated with a variable. Source element 148 may furtherassociate the meta information with variable information that is storedin the logical workspace and/or some other logical workspace.

FIG. 1C is a diagram of a logical workspace UI 160 (hereinafter referredto as “workspace UI 160”) according to an implementation describedherein. As set forth above, computing device 110 may present, fordisplay on display device 120, a logical workspace UI (e.g., workspaceUI 160) that corresponds to a logical workspace. The logical workspacemay be a local workspace that stores variable information and/or metainformation associated with an application and/or particular logicalelements (e.g., blocks) associated with the application. In anotherexample implementation, the logical workspace may be a global workspacethat stores variable information and/or meta information associated withthe application and/or other applications.

In yet another example implementation, the logical workspace, with whichworkspace UI 160 is associated, may be based on a distributed workspace.The distributed workspace may include a collection of logicalworkspaces. Each of the workspaces may store all or a portion of thevariable information and/or the meta information.

Workspace UI 160 may include a workspace name field 161, a group ofvariable fields 162, and a group of meta fields 164. Workspace UI namefield 161 may include an identifier associated with workspace UI 160.Variable fields 162 may include variable information, generated by theapplication, that correspond to one or more source elements 148 (e.g.,identified in application UI 130). The variable information may includea respective name that corresponds to each of the variables (e.g., ti,tc, td, vi, vc, etc.), a respective value that corresponds to each ofthe variables (e.g., 0, 0, 0, −1.736, etc., respectively), and/or arespective size of the variable (e.g., precision scalar, an array, astruct, a data type such as double or a fixed point type, etc.)associated with each of the variables (not shown in FIG. 1C).

Meta fields 164 may include meta information associated with thevariables identified in variable fields 162. The meta information mayinclude, for example, a date and/or time (e.g., month/day/year;hours:minutes; and/or some other format) at which the variableinformation was generated by the application (e.g., 9/16/10 08:35,9/16/10 08:31, etc.) (e.g., as annotated by the dashed outline 164).Meta information may also include information associated with a versionof the variables (e.g., v2.0, v1.02, etc.) and/or information associatedwith the application from which the variable information was generated(e.g., bb_base_reorg, bb_solver_benchmark, etc.) (e.g., annotated by thedashed outline 164).

Workspace UI 160 is shown, in FIG. 1C, as including fields 161-164 forexplanatory purposes. In practice, workspace UI 160 may includeadditional fields, fewer fields, different fields, and/or differentlyarranged fields than are described with respect to workspace UI 160 ofFIG. 1C.

Example Device Components

FIG. 2 is a diagram illustrating example components of a device 200.Device 200 may correspond to computing device 110 of FIG. 1A.Alternatively, computing device 110 may include multiple devices 200. Asshown in FIG. 2, device 200 may include a bus 210, a processor 220, amemory 230, an input component 240, an output component 250, and acommunication interface 260.

Although FIG. 2 shows example components of device 200, in otherimplementations, device 200 may include fewer components, additionalcomponents, different components, or differently arranged componentsthan depicted in FIG. 2. Additionally, or alternatively, one or morecomponents of device 200 may perform one or more tasks described asbeing performed by one or more other components of device 200.

Bus 210 may include a path that permits communication among thecomponents of device 200. Processor 220 may include a processor,microprocessor, or processing logic that interprets and executesinstructions. Memory 230 may include any type of dynamic storage devicethat stores information and instructions, for execution by processor220, and/or any type of non-volatile storage device that storesinformation for use by processor 220.

Input component 240 may include a mechanism that permits an operator toinput information to device 200, such as a keyboard, a keypad, amultipoint input device, a gyroscope, an accelerometer, a button, aswitch, a microphone, a camera, a fingerprint reader, a globalpositioning system (GPS), etc. Output component 250 may include amechanism that outputs information to the operator, such as a display, aspeaker, one or more light emitting diodes (LEDs), a haptics-baseddevice, etc.

Communication interface 260 may include any transceiver-like mechanismthat enables device 200 to communicate with other devices and/ornetworks via wireless communications (e.g., radio frequency, infrared,and/or visual optics, etc.), wired communications (e.g., conductivewire, twisted pair cable, coaxial cable, transmission line, fiber opticcable, and/or waveguide, etc.), or a combination of wireless and wiredcommunications. For example, communication interface 260 may includemechanisms for communicating with another device or system via anetwork.

Device 200 may perform certain operations described below. Device 200may perform these operations in response to processor 220 executingsoftware instructions contained in a computer-readable medium, such asmemory 230. A computer-readable medium may be defined as anon-transitory memory device. A memory device may include a space withina single physical memory device or spread across multiple physicalmemory devices. The software instructions may be read into memory 230from another computer-readable medium or from another device. Thesoftware instructions contained in memory 230 may cause processor 220 toperform processes described herein. Alternatively, hardwired circuitrymay be used in place of or in combination with software instructions toimplement processes described herein. Thus, implementations describedherein are not limited to any specific combination of hardware circuitryand software.

Example Set Up User Interface

FIG. 3 is a diagram illustrating an example variable set up UI 300(hereinafter referred to as “set up UI 300”) according to animplementation described herein. Set up UI 300 may include a collectionof fields and/or buttons, such as a workspace name field 305, a savedata indication field 310, a variable name field 315, a variable sizefield 317, an associate meta information indication field 320(hereinafter referred to as “associated meta information field 320”), adate stamp indication field 325, a variable version field 330, anautomatic version (auto version) indication field 332, a variableversion field 334, a source identifier field 335, an applicationidentifier field 340, a unique variable identifier field 345, a savebutton 350, an edit button 352, a new button 354, and an exit button356. Set up UI 300, of FIG. 3, includes fields and/or buttons 305-356for explanatory purposes. In practice, set up UI 300 may includeadditional fields and/or buttons, fewer fields and/or buttons, differentfields and/or buttons, and/or differently arranged fields and/or buttonsthan are described with respect to set up UI 300.

Workspace name field 305 may store information that identifies a logicalworkspace. For example, an operator, associated with computing device110, may enter information identifying a local workspace (e.g., a modelworkspace, a block workspace, a block mask workspace, etc.) thatcorresponds to an application that generates variable information. Inanother example, the operator may enter information associated with aglobal workspace that corresponds to one or more other applications.

Save data indication field 310 may store an indication specifyingwhether to store the variable information in the logical workspace. Forexample, variable information may be stored in the logical workspace(e.g., a data structure associated with the logical workspace) when anoperator enters, into save data indication field 310, an indication thatthe variable information is to be stored.

Variable name field 315 may store information that identifies a variablefor which the variable information is generated. For example, theoperator may enter information that identifies the variable (e.g., avariable name, a character, a string of characters, etc.) for which thevariable information is to be generated by the application. Variablesize field 317 may store information associated with a size thatcorresponds to the variable information. For example, the operator mayenter information identifying the size of the variable as an array, astructure, etc.

Associate meta information field 320 may store an indication regardingwhether meta information is to be stored in the logical workspace and/orassociated with the variable information that is stored in the logicalworkspace. For example, the meta function may cause the meta informationto be stored in the logical workspace when an operator enters anindication into associate meta information field 320. In anotherexample, the meta function may cause the meta information to beassociated with the variable information, that is stored in the logicalworkspace, when the operator enters an indication into associate metainformation field 320.

Date stamp indication field 325 may permit the operator to specifywhether a date and/or time associated with the variable is to beincluded within the meta information. For example, the application maygenerate the variable information at a particular point in time and themeta function may include information associated with the particularpoint in time in the meta information.

Variable version field 330 may permit the operator to specify whetherversion information, associated with the variable, is to be includedwithin the meta information. For example, information associated withthe version of the variable (e.g., a version identifier, a versionidentifier included as part of a variable name, etc.) may be includedwithin the meta information when the operator enters an indication intovariable version field 330.

Auto version indication field 332 may permit the operator to specifywhether the information associated with the version of the variable isto be automatically generated when the operator specifies (e.g., byselecting variable version field 330) that information for the versionof the variable is to be included in the meta information. Variableversion field 334 may permit the operator to associate a version withthe variable.

Source identifier field 335 may permit an operator to specify thatinformation associated with source element 148 (FIG. 1B), to which thevariable corresponds, is to be included in the meta information.Application identifier field 340 may permit the operator to specifywhether information associated with the application is to be included inthe meta information. For example, the meta function may includeinformation, associated with the application (e.g., an applicationidentifier, an application name, etc.), in the meta information when theoperator enters an indication into application identifier field 340.

Variable identifier field 345 may permit the operator to specify whethera unique identifier for the variable is to be generated and/or includedin the meta information. For example, the meta function may generate aunique identifier (e.g., a globally unique identifier (GUID)) for thevariable. The meta function may include the unique identifier with themeta information when the operator enters an indication into uniquevariable field 345.

Save button 350 may permit the operator to save (e.g., to database 115)set up information, associated with the variable, that is received viaset up UI 300. Edit button 352 may permit the operator to edit the setup information that has been previously saved. New button 354 may permitthe operator to specify other set information associated with anothervariable. Exit button 356 may permit an operator to close set up UI 300.

Example Process for Setting Up Meta Information

FIG. 4 is a flow chart of an example process 400 for setting up metainformation associated with a variable. In one example implementation,process 400 may be performed by computing device 110. In another exampleimplementation, some or all of process 400 may be performed by anotherdevice or a group of devices separate from or including computing device110.

As shown in FIG. 4, process 400 may include receiving a request to enterset up information (block 405) and presenting a set up UI for display inresponse to the request (block 410). For example, computing device 110may receive a request, from an operator of computing device 110, to setup a logical workspace into which variable information, associated witha variable, is stored. A meta function, hosted by computing device 110,may retrieve information associated with a set up UI (e.g., set up UI300 of FIG. 3) from a memory associated with computing device 110 (e.g.,database 115). The meta function may, in response to the request, renderthe set up UI on display device 120 based on the retrieved informationassociated with the set up UI.

As also shown in FIG. 4, process 400 may include receiving set upinformation associated with a variable via the set up UI (block 415).For example, computing device 110 may receive, via the set up UI, set upinformation that corresponds to a variable that is associated with theapplication. The operator may, for example, enter information associatedwith the logical workspace via the set up UI and the meta function mayreceive the information associated with the logical workspace (e.g.,shown as BB_workspace in workspace name field 305 of FIG. 3). Thelogical workspace may be associated with the application and/or with oneor more other applications.

The operator may indicate that the variable information is to be stored,by the application, in the logical workspace (e.g., by entering an “X,”into a box associated with save data indication field 310 of FIG. 3).For example, the meta function may receive the indication, via the setup UI, and may cause the variable information to be stored in thelogical workspace. The operator may enter an identifier associated withthe variable via the set up UI and the meta function may receive theidentifier (e.g., shown as Xd in variable name field 315 of FIG. 3). Theoperator may enter information associated with a size of the variableand the meta function may receive the information associated with thesize (e.g., shown as array in variable size field 317 of FIG. 3).

The meta function may receive an indication that the meta information isto be stored in the logical workspace. In another example, the metafunction may receive an indication that the meta information is to beassociated with the variable information that is stored in the logicalworkspace (e.g., when the operator selects a box corresponding toassociate meta information field 320 of FIG. 3). The operator mayrequest that a date and/or time when the application generates thevariable information be included in the meta information (e.g., byentering an “X,” into a box associated with data stamp field 325 of FIG.3). The meta function may receive the request and may identify a timewhen the application generates the variable information. The metafunction may include information associated with the time in the metainformation.

The operator may request that a version associated with the variable isto be included in the meta information (e.g., by entering an “X,” into abox associated with data stamp field 330 of FIG. 3). The meta functionmay receive the request, via the set up UI, and may automaticallygenerate an updated version, associated with the variable. For example,the meta function may automatically generate the updated version whenthe operator indicates that the updated version is to be automaticallygenerated (e.g., by entering an “X,” into a box associated with autoversion field 332 of FIG. 3). In another example, the operator may notdesire that the version be automatically generated and may not send therequest that the version is to be automatically generated (e.g., by notentering the indication into auto version field 332). The meta functionmay receive information associated with the version to be included withthe meta information when the operator enters, into the set up UI, theinformation associated with the version (e.g., shown as 2.01 in variableversion field 334 of FIG. 3).

The operator may request that information associated with source element148 (FIG. 1B), that corresponds to the variable, is to be included inthe meta information (e.g., by entering an “X,” into a box associatedwith source identifier field 335 of FIG. 3). The meta function mayreceive the request, via the set up UI, and may include in the set upinformation, the indication that the information associated with sourceelement 148 is to be included in the meta information (e.g., anapplication element identifier, an application element hyperlink, etc.).The operator may request that information associated with source element148 be included in the meta information (e.g., by entering an “X,” intoa box associated with source identifier field 340 of FIG. 3).

The meta function may receive the request, via the set up UI, and mayinclude in the set up information, the indication that the informationassociated with the application (e.g., an application name, anapplication identifier, part of an application versioning log, anidentification of who made the most recent changes to the application,an identification of an application location such as a device name, alongitude or latitude, or internet protocol address, etc.) is to beincluded in the meta information.

The operator may request that a unique identifier, associated with thevariable, be included in the meta information (e.g., by entering an “X,”into a box associated with unique variable identifier field 345 of FIG.3). The meta function may receive the request, via the set up UI, andmay include, in the set up information, the indication that the uniqueidentifier is to be included in the meta information.

The operator may enter an instruction to cause the set up information tobe stored, in a memory associated with computing device 110 (e.g.,database 115), by selecting a button (e.g., save button 350 of FIG. 3)within the set up UI.

As further shown in FIG. 4, if set up information associated withanother variable is received (block 420—YES), then process 400 mayreturn to receiving set up information associated with the othervariable via the set up UI (block 415). For example, the operator maydesire to enter set up information associated with one or more othervariables and may select another button on set up UI (e.g., new button354 of FIG. 3). The meta function may receive selection of the otherbutton and may enable the operator to enter the set up information,associated with the one or more other variables, via the set up UI, in amanner similar to that described above (e.g., with respect to block420). In another example, each of the one or more variables may beassociated with a respective meta function. In this example, therespective meta function may receive the set up information associatedwith the one or more variables and may store the set up information inthe memory.

As yet further shown in FIG. 4, if set up information associated withanother variable is not received (block 420—NO), then process 400 mayinclude processing the set up information (block 425).

The meta function may process the set up information received via theset up UI. For example, the meta function may use the set up informationassociated with each of the one or more variables to create a logicalworkspace associated with the variables for which set up information wasreceived. The meta function may, for example, create a logical workspacebased on the workspace name (e.g., BB_Workspace) specified in the set upinformation (e.g., as shown in workspace name field 305 of FIG. 3) orbased on the application name (e.g., bb_base_reorg v2 as shown inapplication name field 131 of FIG. 1).

In one example implementation, the meta function may create the logicalworkspace when the set up information is received and/or before a pointin time when the application begins to generate variable information. Inanother example, the meta function may create the logical workspaceduring a period of time that the application is generating the variableinformation. In yet another example, the meta function may create thelogical workspace after another point in time when the application hascompleted generating the variable information. In another exampleimplementation, the logical workspace may have been created at a priorpoint in time. The logical workspace may, for example, have been createdby the TCE, by the application, by the meta function, and/or by anothermeta function.

As still further shown in FIG. 4, process 400 may include storing theset up information (block 430). For example, the meta function may storethe set up information, associated with the variable, in a datastructure associated with the logical workspace. The data structure maybe located in a memory associated with computing device 110 (e.g., inmemory 230, in database 115, and/or in another location).

Example Logical Workspace UI

FIG. 5 is a diagram illustrating an example logical workspace UI 500(hereinafter referred to as “workspace UI 500”) according to animplementation described herein. Workspace UI 500 may include menu field132 and UI control buttons 134 that enable an operator to perform actsin a manner similar to that described above (e.g., with respect to FIG.1B). Additionally, workspace UI 500 may include a collection of fields,such as a workspace name field 501, a variable name field 505, a sizefield 510, a value field 515, a date field 520, a version field 525, asource field 530, an application field 535, an application (app) versionfield 540, a unique identifier (UID) field 545, and a preview field 550.Workspace UI 500, of FIG. 5, includes fields 501-550 for explanatorypurposes. In practice, workspace UI 500 may include additional fields,fewer fields, different fields, and/or differently arranged fields thanare described with respect to workspace UI 500.

The discussion below describes variable information and/or metainformation being presented for display via a logical workspace UI(e.g., workspace UI 500). In other implementations, all or a portion ofthe variable information and/or the meta information may be stored in adata structure associated with the logical workspace in addition to orinstead of being presented for display via the logical workspace UI.

In another example implementation, the logical workspace with whichworkspace UI 500 is associated may be based on a distributed workspace.The distributed workspace may include a collection of logicalworkspaces. Each of the workspaces may store all or a portion of thevariable information and/or the meta information. Each of the workspacesmay be stored in a memory associated with a particular device (e.g.,computing device 110 and/or data base 115) and/or one or more memoriesassociated with different devices. Thus, the meta function may obtain(e.g., based on service oriented architecture concepts) the variableinformation and/or the meta information from each of the workspaces andmay render the variable information and/or the meta information inworkspace UI 500 as if workspace UI 500 was a local workspace associatedwith the application. The meta function may perform a synchronizationoperation when meta information and/or variable information, stored in aparticular workspace, has been changed (e.g., deleted, stored, updated,etc.). The meta function may cause the changed meta information and/orvariable information to be stored in all or a portion of otherworkspaces that are part of the distributed workspace.

Workspace name field 501 may include an identifier associated withworkspace UI 500. For example, the meta function may obtain theidentifier, associated with workspace UI 500, from the set upinformation associated with a variable and may present the identifierfor display via workspace name field 501.

Fields 505-515 may correspond to variable information that is generatedand/or rendered for display via workspace UI 500 by the application. Inanother example implementation, the application and/or the operator mayinstruct the meta function to render the variable information fordisplay via workspace UI 500. Variable name field 505 may include anidentifier, associated with the variable for which set up informationhas been obtained. For example, the application may generate variableinformation and the meta function may present the identifier, associatedwith the variable, for display via variable name field 505. Size field510 may include information associated with a size of the variable. Forexample, the application may identify a size of a variable (e.g.,scalar, array, structure, etc.) from the set up information and/or fromthe variable information. The application may present the informationassociated with the size of a variable, for display via size field 510.

Value field 515 may include data, associated with the variable, that wasgenerated by the application. For example, the application may executethe logic associated with a logic block included in the application(e.g., logic block 140 of FIG. 1B) to generate the data associated withthe variable. The data associated with the variable may correspond to avalue (e.g., a number, a character or string, an alphanumeric value,etc.) and/or an array of values. When the data is an array of values,the value field may include a visual indication that distinguishes thearray of values from other data that is not an array of values. Theapplication may present the data, associated with the variable, fordisplay via value field 515.

Fields 520-550 may correspond to meta information based on set upinformation associated with the variable. Date field 520 may include atemporal attribute of the variable that includes a date and/or time atwhich the variable information was generated by the application. Forexample, the meta function may determine that the set up information,associated with the variable, indicates that a data and/or time stamp isto be included in the meta information. Based on this determination, themeta function may present information associated with the date and/ortime stamp for display via date field 520.

Version field 525 may include another temporal attribute of theparticular variable that includes a version of the particular variable.For example, the meta function may determine that the set up informationindicates that a version of the particular variable is to be included inthe meta information. Based on this determination, the meta function maypresent the version of the variable for display via version field 525.In one example, the meta function may automatically generate the versionof the variable (e.g., based on an indication, within the set upinformation, that the version is to be automatically generated). Inanother example, the meta function may obtain the version from the setup information.

Source field 530 may include an application attribute for the variablethat corresponds to source element 148 (FIG. 1B). For example, theattribute of the variable may include information associated with sourceelement 148 via which the variable information and/or meta informationis associated with logical workspace. For example, the meta function maydetermine that the set up information indicates that information,associated with source element 148, is to be included in the metainformation. Based on this determination, the meta function may presentinformation, associated with source element 148, for display via sourcefield 530.

Application field 535 may store another application attribute. As shown,application field 535 may store information identifying the applicationthat generated the variable information associated with the variableidentified in variable name field 505. The meta function may store theother application attribute, in application field 535, based on adetermination that the set up information indicates that the otherapplication attribute is to be included in the meta information.

App version field 540 may include a further application attribute thatincludes information associated with a version of the applicationidentified in application field 535. For example, the meta function maydetermine that the set up information indicates that the version, of theapplication, is to be included in the meta information. Based on thisdetermination, the meta function may present the information, associatedwith the version of the application, for display via app version field540.

UID field 545 may include information associated with a contextualattribute of the particular variable that includes a unique identifier.For example, the meta function may determine that the set up informationindicates that a unique identifier (e.g., a globally unique identifier,or GUID, and/or some other unique identifier), associated with theparticular variable, is to be included in the meta information. Based onthis determination, the meta function may generate the uniqueidentifier. For example, the unique identifier may be generated, by themeta function, using a hash function, cryptographic function, and/orsome other mathematical function.

The unique identifier may be based on one or more of: informationassociated with the logical workspace (e.g., a workspace name,identifier, etc.), a variable name (e.g., xd), a version of the variable(e.g., 2.01), information associated with the application (e.g., anapplication name, application identifier, an application version, etc.),an identifier that corresponds to a source element (e.g., source element148) associated with the variable, information associated with a dateand/or time that the application generates and/or processes variableinformation, information associated with the operator profile (e.g.,name, usergroup, etc.), information associated with the location of theapplications (e.g., geo location, network location, etc.), and/or otherinformation.

Preview field 550 may include information associated with a visualattribute of the variable. The information may include, for example,information associated with an icon and/or a visual image associatedwith the application (e.g., as identified in application field 136 ofFIG. 1B). The visual image may include one or more objects thatcorrespond to logical elements and/or blocks that are identified inapplication field 136. For example, the meta function may determine thatthe set up information includes an indication that informationassociated with the application is to be included within workspace UI500. Based on this determination, the meta function may retrieve, from amemory associated with computing device 110, information associated withan icon that corresponds to the application for display via previewfield 550. In another example, the meta function may retrieve, from thememory, information associated with an image that corresponds to theapplication for display via preview field 550 (e.g., the appearance of alayer in the hierarchy of a graphical model).

The meta function may receive an indication that variable information isto be stored in a logical workspace and/or presented for display via alogical workspace UI. The indication may be received in a number ofways. For example, the indication may be received when the applicationbegins to generate variable information. In another example, theindication may be received before the variable information is generatedand/or when a logical workspace is created. In yet another example, theindication may be received after the variable information and/or logicalworkspace has been generated. The meta function may receive theindication and may retrieve, from the memory, the set up informationassociated with the variable. The set up information may include anindication of the logical workspace with which the meta informationand/or variable information is to be associated.

The application may present, for display on display device 120, all or aportion of the variable information via a logical workspace UI (e.g.,workspace UI 500). The variable information may include a variable name(e.g., ti), information associated with a size of a variable, such as anarray (e.g., <1×101 double>), one or more values associated with theparticular variable (e.g., 0) (e.g., as shown by dashed outlineannotation 562).

The meta function may associate the meta information with the logicalworkspace, with the variable information stored in the logicalworkspace, and/or with the variable information displayed via thelogical workspace UI. The meta function may, in one example, present themeta information for display via the logical workspace UI in a mannerthat corresponds to the displayed variable information. For example, themeta function may, based on the set up information, determine that adate and/or time stamp (e.g., 9/16/10 08:35) and/or informationassociated with a version of the particular variable (e.g., v2.0) is tobe associated with the logical workspace (e.g., as shown by dashedoutline annotation 562).

The logical workspace UI (e.g., workspace UI 500) may include variableinformation associated with other variables (e.g., as shown by thedashed outline annotation 564 and/or 566). The other variableinformation may have been generated by the application, another versionof the application, and/or another application. The meta function mayalso associate meta information associated with the other variablesbased on set up information associated with the other variables (e.g.,as shown by the dashed outline annotation 564 and/or 566).

Fields 505-550 may be static or dynamic, where information associatedwith each field may be accessed, by an operator, via workspace UI 500.For example, the operator may select, via the logical workspace UI,variable information and/or meta information that are included withinthe fields associated with the logical workspace (e.g., using a pointingdevice, a keyboard, and/or some other device). A static field mayinclude information that is statically displayed via the logicalworkspace UI. A dynamic field may enable the operator to dynamicallychange the appearance of the information shown in the logical workspaceUI or to obtain additional information regarding an item shown in thelogical workspace UI.

For example, the operator may select particular variable information(e.g., xd), which may cause the particular variable information and/ormeta information to change in appearance (e.g., to become highlighted,to change to a bold font, to change color, etc., as shown by highlightdata item 568). In another example, the meta function may render, fordisplay via the logical workspace UI and/or via another UI, other metainformation and/or variable information that is not being displayed viathe logical workspace UI or the other UI. In yet another example, theoperator may select a value associated with the variable (e.g., −0.149 .. . ) and the meta function may render an array of values (e.g., −0.149,−0.145, −0.140, etc.) that corresponds to the size of the variable(e.g., 2001×2 double) included in size field 510. The meta function mayrender the array of values in another UI and/or within workspace UI 500.

In another example implementation, the selection may cause anapplication image (e.g., application image 570), associated with theother application to be displayed within the logical workspace (e.g.,via workspace UI 500) and/or via another UI. Additionally, oralternatively, the meta function may cause an application icon (e.g.,application icon 572) to be displayed within the logical workspace thatcorresponds to an application identified in the logical workspace.

For example, application icon 572 may correspond to the application(e.g., bb_solver_benchmark) and application icon 574 may correspond tothe other application (e.g., bb_base_reorg). Application icon 572 and/or574 may include visually aesthetic information (e.g., a color,trademark, trade name, symbol, logo, file type indicator, etc.) thatcorrespond to the application and/or other application, respectively.The operator may cause an application image, that corresponds to anapplication with which the application icon is associated, to bedisplayed via the logical workspace UI and/or another UI, when theoperator selects (e.g., by a single click of a pointing device) and/orplaces a cursor proximate to the application icon. Additionally, oralternatively, the operator may cause an application UI (e.g.,application UI 130 of FIG. 1) to be displayed when the operator selects(e.g., by a double click of the pointing device) the application icon(e.g., application icon 574).

Example Process for Managing Variable Information Using Meta Information

FIG. 6 is a flow chart of an example process 600 for managing variableinformation using meta information according to an implementationdescribed herein. In one example implementation, process 600 may beperformed by computing device 110. In another example implementation,some or all of process 600 may be performed by another device or a groupof devices separate from or including computing device 110.

As shown in FIG. 6, process 600 may include receiving an indication thatvariable information is to be stored in a logical workspace (block 605).For example, an operator may enter an instruction to an application thatcauses variable information to be stored in a logical workspace and/ordisplayed via a UI associated with the logical workspace. In oneexample, the meta function may receive an indication, from theapplication, that the variable information was, or is to be, stored inthe logical workspace and/or displayed via the logical workspace UI. Inanother example, the meta function may receive the instruction from theoperator.

As also shown in FIG. 6, process 600 may include identifying with whichvariable, the variable information is associated (block 610) anddetermining in which logical workspace the variable information is to bestored (block 615). For example, the meta function may identify thevariable for which the variable information is to be stored and/ordisplayed based on the indication received from the application and/orthe instruction received from the operator.

In one example implementation, set up information, associated with thevariable may be retrieved. For example, the meta function may retrieve,from a memory associated with computing device 110 (e.g., database 115of FIG. 1A), set up information associated with the variable based onthe identification of the variable. The meta function may identify, fromthe set up information, in which of one or more logical workspaces thevariable information is to be stored and/or displayed (e.g., via arespective logical workspace UI associated with the one or more logicalworkspaces).

In another example implementation, the meta function may not retrievethe set up information associated with the variable. For example, themeta function may identify the variable in a manner similar to thatdescribed above and, based on the identification of the variable, mayautomatically (e.g., without retrieving the set up information) identifythe logical workspace in which the variable information is to be storedand/or the logical workspace UI on which the variable information is tobe displayed. The automatic identification of the logical workspace maybe pre-determined (e.g., pre-programmed by the operator) and/or embeddedwithin the meta function. In another example, the identification of thelogical workspace may be obtained from the indication received from theapplication and/or the instruction received from the operator in amanner that does not include retrieving the set up information.

The logical workspace may, in one example, have been created at a priorpoint in time. In another example, the logical workspace may be created,by the meta function, based on the identification of the logicalworkspace. With respect to the other example, the meta function maypresent, for display on display device 120, information associated withthe logical workspace UI (e.g., workspace UI 500 of FIG. 5) via whichthe variable information may be displayed by the application.Additionally, or alternatively, the meta function may create a datastructure, associated with the logical workspace, in which the variableinformation may be stored by the application.

As further shown in FIG. 6, process 600 may include generating metainformation associated with the variable (block 620). For example, themeta function may generate meta information associated with the variablebased on the set up information associated with the variable. In oneexample, the meta function may determine whether a temporal attribute,associated with the variable, is to be included in the meta information.

For example, if the set up information indicates that a time and/or datestamp is to be included in the meta information, then the meta functionmay identify a time at which the variable information was generatedand/or stored (e.g., in the logical workspace) by the application. Themeta function may include the time, as a date and/or time stamp, in themeta information. If the set up information does not indicate that thetemporal attribute is to be included in the meta information, then themeta function may not identify the time and/or may not include the dateand/or time stamp in the meta information.

In another example, the meta function may determine whether anothertemporal attribute, associated with the variable, is to be included inthe meta information. For example, if the set up information indicatesthat a version of the variable is to be included in the metainformation, then the meta function may identify the version of thevariable and/or may include the version of the variable in the metainformation. In one example, the version may have been specified, at aprior point in time, in the set up information by the operator (e.g., ina manner similar to that described above with respect to FIG. 4).

In another example, the meta function may identify a version based on avalue, associated with the variable, stored in a data structure and/orbased on a version enumerator, such as a counter, associated with thevariable. If the set up information does not indicate that the othertemporal attribute is to be included in the meta information, then themeta function may not identify the version and/or may not include theversion in the meta information.

The meta function may determine whether information associated with theapplication (e.g., an application identifier, a name, etc.), a versionassociated with the application, and/or a source element (e.g., sourceelement 148 of FIG. 1) associated with the application is to be includedin the meta information. For example, if the set up informationindicates that the information associated with the application is to beincluded in the meta information, then the meta function may include theinformation associated with the application in the meta information. Inanother example, if the set up information indicates that the version,and/or the source element is to be included in the meta information,then the meta function may include the version and/or the source elementin the meta information. If the set up information does not indicatethat the information associated with the application, the version,and/or the source element is to be included in the meta information,then the meta function may not include the information associated withthe application, the version, and/or the source element in the metainformation.

The meta function may determine whether a contextual attribute,associated with the variable, is to be included in the meta information.For example, if the set up information indicates that a uniqueidentifier is to be included in the meta information, then the metafunction may include the unique identifier in the meta information.

The unique identifier may be generated based on all or a portion of thevariable information and/or the meta information. For example, theunique identifier may be based the variable information, such as anidentifier associated with the variable, one or more values associatedwith the variable, etc. Additionally, or alternatively, the uniqueidentifier may be based on the meta information, such as informationassociated with the workspace (e.g., a name, an identifier, etc.),temporal attributes of the variable (e.g., a date and/or time stamp, aversion of the variable, etc.), information associated with anapplication (e.g., an application name, information associated with asource element associated with the variable, a version of theapplication, etc.), and/or other meta information.

The meta function may use a hash function, cryptographic function,and/or some other mathematical function to generate the uniqueidentifier based on the meta information and/or the variableinformation. If the set up information does not indicate that thecontextual attribute is to be included in the meta information, then themeta function may not generate the unique identifier and/or may notinclude the unique identifier in the meta information.

The meta function may determine whether a visual attribute, associatedwith the variable, is to be included in the meta information. Forexample, if the set up information indicates that an icon and/or image,associated with the application from which the information associatedwith the variable was generated is to be included, then the metafunction may include information associated with the icon and/or imagein the meta information. The information, associated with the iconand/or the image may be retrieved from a memory associated withcomputing device 110. If the set up information does not indicate thatthe visual attribute is to be included in the meta information, then themeta function may not include the information associated with the iconand/or the image in the meta information.

In another example implementation, the meta function may automaticallygenerate the meta information in a manner that does not includeretrieving and/or using the set up information associated with thevariable. Automatically generating the meta information may be based onpre-determined (e.g., pre-programmed by the operator) and/or embeddedinstructions within the meta function. The instructions may include anindication that one or more of the temporal, application, contextual,and/or visual attributes, as described above, are to be included in themeta information.

In yet another example implementation, the meta function may generatethe meta information based on default set up information. For example,the set up information, associated with the variable, may include anindication that default settings are to be used to generate the metainformation. Based on the indication that the default settings are to beused, the meta function may generate the information associated with thevariable to include one or more of the temporal, application contextual,and/or visual attributes, as described above, based on the defaultsettings.

As still further shown in FIG. 6, process 600 may include associatingthe meta information with the variable information stored in the logicalworkspace (block 625). For example, the meta function may associate themeta information with the variable information that is stored in thelogical workspace in a number of ways. For example, the meta functionmay store the meta information in the logical workspace (e.g., within adata structure associated with the logical workspace) in a manner thatcorresponds to the variable information. In another example, the metafunction may present, for display on display device 120, the metainformation via a logical workspace UI (e.g., workspace UI 500). Themeta function may present the meta information in a manner thatcorresponds to the variable information that is displayed via thelogical workspace UI.

In another example implementation, the meta function may associate themeta information with the variable information in a manner that enablesanother application to access the variable information based on the metainformation. For example, the meta function may associate the metainformation with the variable information to be generated for and/oroperated on by another application.

In another example, the meta function may associate the meta informationwith the variable information that is associated with another logicalworkspace. The other logical workspace may be associated with one ormore other applications, which may enable the one or more otherapplications to perform an operation on the information associated withthe variable based on the meta information.

As also shown in FIG. 6, process 600 may include updating the metainformation and storing the updated meta information (block 630). Forexample, the meta function may increment a version, associated with thevariable, that was generated by the meta function. In another example,the meta function may increment a counter, associated with the versionof the variable. The meta function may store, in a data structureassociated with the logical workspace, the incremented versionassociated with the variable.

CONCLUSION

The systems and/or methods, described herein, may enable variableinformation, associated with a variable, to be managed using metainformation associated with the variable. The meta information mayenable the variable information to be distinguished from other variableinformation that was generated by the application at another point intime, by another version of the application, by another application,and/or by another version of another application. The systems and/ormethods may associate the meta information with the variable informationthat is stored in a logical workspace.

The foregoing description provides illustration and description, but isnot intended to be exhaustive or to limit the description to the preciseform disclosed. Modifications and variations are possible in light ofthe above teachings or may be acquired from practice of theimplementations.

While series of blocks have been described with regard to FIGS. 4 and 6,the order of the blocks may be modified in other embodiments. Further,non-dependent blocks may be performed in parallel.

It will be apparent that embodiments, as described herein, may beimplemented in many different forms of software, firmware, and hardwarein the embodiments illustrated in the figures. The actual software codeor specialized control hardware used to implement embodiments describedherein is not limiting of the embodiments. Thus, the operation andbehavior of the embodiments were described without reference to thespecific software code—it being understood that software and controlhardware may be designed to implement the embodiments based on thedescription herein.

Further, certain portions, described above, may be implemented as acomponent or logic that performs one or more functions. A component orlogic, as used herein, may include hardware, such as a processor, ASIC,or FPGA, or a combination of hardware and software (e.g., a processorexecuting software).

Even though particular combinations of features are recited in theclaims and/or disclosed in the specification, these combinations are notintended to limit the disclosure of the embodiments. In fact, many ofthese features may be combined in ways not specifically recited in theclaims and/or disclosed in the specification.

No element, act, or instruction used in the present application shouldbe construed as critical or essential unless explicitly described assuch. Also, as used herein, the article “a” is intended to include oneor more items. Where only one item is intended, the term “one” orsimilar language is used. Further, the phrase “based on” is intended tomean “based, at least in part, on” unless explicitly stated otherwise.

What is claimed is:
 1. A method comprising: receiving a notificationthat variable information, associated with a variable, is stored in adata structure associated with a logical workspace, the variableinformation being generated by a first application associated with thelogical workspace in which the variable is stored, an identifier of thevariable being included in the first application, and the identifier ofthe variable being included in a second application; accessing, based onthe notification, the data structure associated with the logicalworkspace; retrieving, from a memory, set up information associated withthe variable, the set up information identifying a manner in which metainformation, associated with the variable, is generated; generating themeta information associated with the variable, the meta informationbeing generated in the manner identified by the set up information, themeta information including information associated with a temporalattribute of the variable and further including at least one of:information identifying a time at which the variable information wasgenerated by the first application, information associated with aversion of the variable, information associated with the firstapplication, information associated with a contextual attribute of thevariable, information associated with a visual attribute of thevariable, information associated with the logical workspace, informationassociated with a spatial attribute of the variable, informationassociated with a temporal attribute of the first application,information associated with a change log of the variable over a periodof time; and associating the meta information with the variableinformation that is stored in the data structure associated with thelogical workspace, the meta information being associated with thevariable information to permit an operation to be performed on: the metainformation, or the variable information, and the receiving, theaccessing, the retrieving, the generating, and the associating beingperformed by one or more computing devices.
 2. The method of claim 1,where associating the meta information with the variable informationincludes: storing all or a portion of the meta information in the datastructure associated with the logical workspace.
 3. The method of claim1, where associating the meta information with the variable informationincludes: presenting, to a display device associated with the one ormore computing devices, the meta information for display via a userinterface associated with the logical workspace.
 4. The method of claim1, where associating the meta information with the variable informationincludes: sending the meta information to another application associatedwith the logical workspace, where sending the meta information to theother application enables the other application to perform anotheroperation on the variable information or the meta information.
 5. Themethod of claim 1, where the information, associated with the firstapplication, includes at least one of: an identifier associated with thefirst application, an application name, or a version associated with thefirst application.
 6. The method of claim 1, where the identifier of thevariable is a unique identifier that distinguishes the variableinformation from other variable information associated with anothervariable.
 7. The method of claim 1, where the information, associatedwith the visual attribute of the variable, includes: informationassociated with an icon or image that corresponds to the firstapplication, where the information associated with the icon or imageincludes at least one of: a visual appearance of the icon, a trademarkassociated with the first application, information associated with abrand of the first application, or a logical representation of a modeldisplayed via a user interface,  the model being associated with thevariable.
 8. The method of claim 1, further comprising: determining thatthe set up information indicates that the meta information is toinclude: the information associated with the temporal attribute of thevariable, and at least one of: the information associated with the firstapplication that generated the variable information, the informationassociated with the contextual attribute of the variable, or theinformation associated with the visual attribute of the variable.
 9. Acomputing device, in a technical computing environment, comprising: aprocessor configured to: receive a notification that variableinformation, associated with a variable, is to be stored in a datastructure associated with one or more logical workspaces, the variableinformation being generated by a first application associated with theone or more logical workspaces, an identifier of the variable beingincluded in the first application, and the identifier of the variablebeing included in a second application, retrieve, from a memory andbased on the notification, set up information associated with thevariable, the set up information identifying a manner in which metainformation, associated with the variable, is generated, generate metainformation associated with the variable, the meta information beinggenerated in the manner identified by the set up information, and themeta information including information associated with a temporalattribute of the variable and further including at least one of:information identifying a time at which the variable information wasgenerated by the first application, information associated with aversion of the variable, information associated with the firstapplication, information associated with a contextual attribute of thevariable, information associated with a visual attribute of thevariable, information associated with the one or more logicalworkspaces, information associated with a spatial attribute of thevariable, information associated with a temporal attribute of the firstapplication, or information associated with a change log of the variableover a period of time, and associate the meta information with thevariable information that is stored in a data structure associated withthe one or more logical workspaces, associating the meta informationpermitting an operation to be performed on the meta information or thevariable information.
 10. The computing device of claim 9, furthercomprising: the memory, where the processor is further configured to:determine that the set up information, associated with the variable,includes a default setting, where the default setting indicates that themeta information is to include:  the information associated with thetemporal attribute of the variable,  the information associated with thefirst application, and  at least one of:  the information associatedwith the contextual attribute of the variable, or  the informationassociated with the visual attribute of the variable.
 11. The computingdevice of claim 9, where the processor is further configured to:determine that the set up information, associated with the variable,includes a default setting, and where the default setting indicates thatthe information associated with the contextual attribute of the variableis to be automatically generated.
 12. The computing device of claim 9,where the one or more logical workspaces are associated with a userinterface, and where, when associating the meta information with thevariable information, the processor is further configured to at leastone of: store the meta information in the data structure, or present, toa display device associated with the computing device, the metainformation for display via the user interface.
 13. The computing deviceof claim 9, where, when associating the meta information with thevariable information, the processor is further configured to at leastone of: store the meta information in the data structure associated withthe one or more logical workspaces, present the meta information, fordisplay, via one or more user interfaces associated with the one or morelogical workspaces, or generate the meta information to enable anotherapplication, associated with the one or more logical workspaces, toperform the operation on the variable information.
 14. The computingdevice of claim 9, where each of the one or more logical workspaces isassociated with the first application or at least one of one or moreother applications.
 15. The computing device of claim 9, where the firstapplication is an executable graphical model that generates the variableinformation in the technical computing environment, and where at leastone of the one or more logical workspaces is associated with thetechnical computing environment.
 16. The computing device of claim 9,where the processor is further configured to: identify the one or morelogical workspaces based on the information associated with the one ormore logical workspaces obtained from the set up information associatedwith the variable.
 17. A non-transitory computer-readable medium storinginstructions, the instructions comprising: one or more instructionswhich, when executed by at least one processor, cause the at least oneprocessor to receive a notification that variable information,associated with a variable, is stored in a data structure associatedwith a logical workspace, the variable information being generated by afirst application associated with the logical workspace in which thevariable is stored, an identifier of the variable being included in thefirst application, and the identifier of the variable being included ina second application; one or more instructions which, when executed bythe at least one processor, cause the at least one processor toretrieve, from a memory, set up information associated with thevariable, the set up information identifying a manner in which metainformation, associated with the variable, is generated; one or moreinstructions which, when executed by the at least one processor, causethe at least one processor to generate, based on the notification, themeta information associated with the variable, the meta informationbeing generated in the manner identified by the set up information, andthe meta information including information associated with a temporalattribute of the variable and further including at least one of:information identifying a time at which the variable information wasgenerated by the first application, information associated with aversion of the variable, information associated with the firstapplication, information associated with a contextual attribute of thevariable, information associated with a visual attribute of thevariable, information associated with the logical workspace, informationassociated with a spatial attribute of the variable, informationassociated with a temporal attribute of the first application,information associated with a change log of the variable over a periodof time; and one or more instructions which, when executed by the atleast one processor, cause the at least one processor to associate themeta information with the variable information stored in the datastructure associated with the logical workspace, the meta informationbeing associated with the variable information to permit an operation tobe performed on the meta information or the variable information. 18.The non-transitory computer-readable medium of claim 17, where the firstapplication includes an executable graphical model, and where the metainformation is associated with the executable graphical modelgenerating, within a technical computing environment, the variableinformation.
 19. The non-transitory computer-readable medium of claim17, the instructions further comprising: one or more instructions tocreate, based on the notification, the data structure associated withthe logical workspace in which the variable information is to be stored.20. The non-transitory computer-readable medium of claim 17, where thefirst application includes an executable graphical model, and where: thelogical workspace is associated with the executable graphical model, orthe logical workspace is associated with one or more other executablegraphical models.
 21. The non-transitory computer-readable medium ofclaim 17, where the meta information further includes a plurality of:the information associated with the first application, the informationassociated with the logical workspace, the information associated withthe contextual attribute of the variable, or the information associatedwith the visual attribute of the variable.
 22. The non-transitorycomputer-readable medium of claim 17, the instructions furthercomprising: one or more instructions to determine that the set upinformation indicates that the meta information is to include: theinformation associated with the temporal attribute of the variable, andat least one of: the information associated with the first application,the information associated with the logical workspace, the informationassociated with the contextual attribute of the variable, or theinformation associated with the visual attribute of the variable. 23.The non-transitory computer-readable medium of claim 17, where thelogical workspace and the other logical workspace are associated with adistributed logical workspace, and where the instructions furthercomprise: one or more instructions to identify that other metainformation, that is stored in the data structure associated with thelogical workspace, is not stored in the data structure associated withthe other logical workspace; and one or more instructions to store theother meta information in the data structure associated with the otherlogical workspace based on identifying that the other meta informationis not stored in the data structure associated with the other logicalworkspace.
 24. The non-transitory computer-readable medium of claim 17,where the information associated with the temporal attribute of thevariable includes: a time at which the variable information was storedin the data structure associated with the logical workspace.
 25. Thecomputing device of claim 9, where the information, associated with thetemporal attribute of the variable, includes a time at which thevariable information was stored in the data structure associated withthe one or more logical workspaces.
 26. The computing device of claim 9,where the first application is same as the second application.